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Creation de la nouvelle app

  • rails new_app —skip-test-unit
  • cd new_app
  • git init .
  • emacs Gemfile:
source 'https://rubygems.org'
ruby '1.9.3'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.2'

gem 'pg', "~> 0.17.1"
gem 'rails_12factor'

group :development do
# Use sqlite3 as the database for Active Record
  #gem 'sqlite3'
  gem 'rspec-rails', '2.14.1'

group :assets do
  # Use SCSS for stylesheets
  gem 'sass-rails', '~> 4.0.0'
  # Use Uglifier as compressor for JavaScript assets
  gem 'uglifier', '>= 1.3.0'
  # Use CoffeeScript for .js.coffee assets and views
  gem 'coffee-rails', '~> 4.0.0'

# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'

group :test do
   gem 'capybara', '1.1.2'

# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'

# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 1.2'

group :doc do
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', require: false

group :production do
  # gem 'pg'

# Use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.1.2'

# Use unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano', group: :development

# Use debugger
# gem 'debugger', group: [:development, :test]
  • emacs config/database.yml:
  adapter: postgresql
  encoding: unicode
  database: new_app_development
  pool: 5
  username: tprails

  # Connect on a TCP socket. Omitted by default since the client uses a
  # domain socket that doesn't need configuration. Windows does not have
  # domain sockets, so uncomment these lines.
  #host: localhost

  # The TCP port the server listens on. Defaults to 5432.
  # If your server runs on a different port number, change accordingly.
  #port: 5432

  # Schema search path. The server defaults to $user,public
  #schema_search_path: myapp,sharedapp,public

  # Minimum log levels, in increasing order:
  #   debug5, debug4, debug3, debug2, debug1,
  #   log, notice, warning, error, fatal, and panic
  # Defaults to warning.
  #min_messages: notice

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
  adapter: postgresql
  encoding: unicode
  database: new_app_test
  pool: 5
  username: tprails

  adapter: postgresql
  encoding: unicode
  database: new_app_production
  pool: 5
  username: tprails

  • Pour creer le role postgres (la premiere fois)
    • sudo bash
    • su - posgres
    • createuser -d -P tprails
    • exit
    • exit

Mise en place des tests sur les pages statiques

  • rails generate rspec:install
  • rails generate controller StaticPages home help —no-test-framework
  • rails generate integration_test static_pages
  • emacs spec/spec_helper.rb
# This file is copied to spec/ when you run 'rails generate rspec:install'
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'rspec/autorun'

# Requires supporting ruby files with custom matchers and macros, etc,
# in spec/support/ and its subdirectories.
Dir[Rails.root.join("spec/support/**/*.rb")].each { |f| require f }

# Checks for pending migrations before tests are run.
# If you are not using ActiveRecord, you can remove this line.
ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)

RSpec.configure do |config|
  # ## Mock Framework
  # If you prefer to use mocha, flexmock or RR, uncomment the appropriate line:
  # config.mock_with :mocha
  # config.mock_with :flexmock
  # config.mock_with :rr

  # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
  config.fixture_path = "#{::Rails.root}/spec/fixtures"

  # If you're not using ActiveRecord, or you'd prefer not to run each of your
  # examples within a transaction, remove the following line or assign false
  # instead of true.
  config.use_transactional_fixtures = true

  # If true, the base class of anonymous controllers will be inferred
  # automatically. This will be the default behavior in future versions of
  # rspec-rails.
  config.infer_base_class_for_anonymous_controllers = false

  # Run specs in random order to surface order dependencies. If you find an
  # order dependency and want to debug it, you can fix the order by providing
  # the seed, which is printed after each run.
  #     --seed 1234
  config.order = "random"
  config.include Capybara::DSL
  • On modifie le test de la facon suivante (spec/requests/static_pages_spec.rb)
require 'spec_helper'

describe "StaticPages" do
  describe "Home page" do

    it "should have the content 'Sample App'" do
      visit '/static_pages/home'
      expect(page).to have_content('Sample App')
  • On lance le test qui doit echouer (rouge):
    bundle exec rspec
  • On modifie la page home pour faire reussir le test:
<h1>Sample App</h1>
<p>Welcome on the Sample App home page</p>